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68412712 = 2313036563
BaseRepresentation
bin1000001001111…
…10010100101000
311202201201121011
410010332110220
5120003201322
610442153304
71460332654
oct404762450
9152651534
1068412712
1135687535
121aab2834
13112341c4
14912ba64
156015677
hex413e528

68412712 has 16 divisors (see below), whose sum is σ = 128391840. Its totient is φ = 34174896.

The previous prime is 68412679. The next prime is 68412727. The reversal of 68412712 is 21721486.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7143 + ... + 13705.

It is an arithmetic number, because the mean of its divisors is an integer number (8024490).

Almost surely, 268412712 is an apocalyptic number.

It is an amenable number.

68412712 is a deficient number, since it is larger than the sum of its proper divisors (59979128).

68412712 is a wasteful number, since it uses less digits than its factorization.

68412712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7872 (or 7868 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 68412712 is about 8271.1977367247. The cubic root of 68412712 is about 408.9896040542.

The spelling of 68412712 in words is "sixty-eight million, four hundred twelve thousand, seven hundred twelve".

Divisors: 1 2 4 8 1303 2606 5212 6563 10424 13126 26252 52504 8551589 17103178 34206356 68412712